Employee Benefit Plans (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 02, 2021	Oct. 03, 2020	Sep. 28, 2019
Defined Benefit Plan Disclosure
One-time pension settlement charge	$ 0	$ 121,324	$ 0
Profit share expense	$ 34,257	21,968	$ 33,250
Class B Common Stock
Defined Benefit Plan Disclosure
Number of shares owned by the participants under RSP (in shares)	1,644,078
Pension Plan
Defined Benefit Plan Disclosure
Total accumulated benefit obligation	$ 832,053	$ 868,316
Trust for Unqualified Plan
Defined Benefit Plan Disclosure
Estimated future employer contributions in next fiscal year	5,200
Postretirement Benefit Plan
Defined Benefit Plan Disclosure
Plan assets	$ 0
Discount rate	2.50%	2.30%	3.00%
Service cost discount rate	2.50%	3.10%	4.30%
Interest cost discount rate	1.40%	2.50%	3.80%
Assumed annual per capita rate of increase of medical and drug costs for next fiscal year	7.80%
Defined benefit plan, ultimate trend rate	4.50%
U.S. Plans | Pension Plan
Defined Benefit Plan Disclosure
Pension settlement reduced projected benefit obligation	$ 0	$ 486,615
Pension settlement reduced fair value of assets	0	486,615
One-time pension settlement charge		121,324
Curtailment gain	$ 0	$ 0	$ 0
Assumptions for pension expense, average rate of return on plan assets	5.00%	4.50%	5.30%
Plan assets	$ 40,873	$ 30,887
Discount rate	3.20%	3.00%	3.30%
Service cost discount rate	3.10%	3.50%	4.40%
Interest cost discount rate	2.60%	2.90%	4.10%
U.S. Plans | Equity securities | Pension Plan
Defined Benefit Plan Disclosure
Actual Plan Asset Allocations	35.00%	37.00%
U.S. Plans | Fixed income securities | Pension Plan
Defined Benefit Plan Disclosure
Actual Plan Asset Allocations	65.00%	63.00%
Non-U.S. Plans | Pension Plan
Defined Benefit Plan Disclosure
Pension settlement reduced projected benefit obligation	$ 58,604	$ 2,999
Pension settlement reduced fair value of assets	58,604	2,999
Curtailment gain	$ 5,830	$ (100)	$ 0
Assumptions for pension expense, average rate of return on plan assets	3.20%	2.70%	3.50%
Estimated future employer contributions in next fiscal year	$ 7,900
Plan assets	$ 9,266	$ 3,862
Discount rate	1.80%	1.40%	1.60%
Service cost discount rate	1.50%	1.60%	2.90%
Interest cost discount rate	1.20%	1.30%	2.60%
Non-U.S. Plans | One of our non-U.S. plans | Pension Plan
Defined Benefit Plan Disclosure
Pension settlement reduced projected benefit obligation	$ 63,333
Pension settlement reduced fair value of assets	57,643
Curtailment gain	$ 5,830
Non-U.S. Plans | Equity securities | Pension Plan
Defined Benefit Plan Disclosure
Actual Plan Asset Allocations	32.00%	24.00%
Assumptions for pension expense, assumed average asset allocation	40.00%
Non-U.S. Plans | Fixed income securities | Pension Plan
Defined Benefit Plan Disclosure
Actual Plan Asset Allocations	63.00%	38.00%
Assumptions for pension expense, assumed average asset allocation	60.00%